I have been banging my head against the wall for weeks with this problem.
The Problem: I have ubuntu installed on my laptop and I want to dual boot with windows.
Background:
I'm trying to install 64 bit windows.
I have tried tools such as winusb, and the newer fork of it, these did not work.
Using rufus or a similar tool, I was able to make a usb that would boot but only in MBR / legacy boot mode. I need to boot in UEFI mode.
for rufus I followed the instructions found here:
http://www.techfleece.com/2015/07/08/how-to-create-a-bootable-windows-usb-drive-using-rufus/
Afterwards, I followed the instructions found here:
https://onetransistor.blogspot.cz/2014/09/make-bootable-windows-usb-from-ubuntu.html
This was the closest I have gotten, I was able to boot from the USB in UEFI mode, but it gives me an error:
Windows failed to start...
Status 0xc0000225
I have tried using different USB sticks, and even different windows iso's. No success.
Any suggestions?
All the iso's I have been using have been windows 7 iso's, am I better off using a windows 8 or 10 iso? I would really prefer not to.
Does anyone have experience making a bootable windows 7 usb? If so what method did you use? Any help much appreciated.
Another note: The laptop came with windows pre-installed, I read on the ubuntu website that could be the problem. see the following link (toward the bottom of the page):
https://help.ubuntu.com/community/WindowsDualBoot
Does this mean it is not possible to dual boot with a laptop that came with windows pre-installed???
It has to be FAT formatted (not NTFS, basically, usually FAT32). Here's a good article about how to get the drive prepped, pretty easily: https://blogs.technet.microsoft.com/home_is_where_i_lay_my_head/2012/10/02/how-to-install-windows-7-or-8-from-usb-using-uefi/
After that, pay special attention to your BIOS settings. For UEFI to work, you typically have to tweak a storage setting, and then reboot, as the UEFI values are assigned by the BIOS, dynamically.
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